How to script Illustrator to insert filename in to textpath?

With many thanks to CarlosCanto!

Cronos's Pastebin - Pastebin.com

Introducing: Insert Page Numbers v 2

#target illustrator
//#targetengine main
// script.name = insertPageNumbers_v2.jsx; // works with CS4 & CS5
// script description = Inserts page numbers (or any other text) to all artboards in the active document;
// script.required = at least one open document
// script.parent = CarlosCanto // 5/25/12;
// script.elegant = false;
// script.updates = added options to insert Date, Time, Full File Name, & File Name;
// added a button to clear previous entered data;
// dialog stays open, to be able to input data in multiple locations
// only one layer is created on multiple runs
// Notes: The script creates a new layer (Page Numbers) then adds a text frame per Artboard that act as footer or header text.
// Its primary function is to insert Page Numbers, but it could be used to insert any other kind of information.
if (app.documents.length > 0) // continue if there's at leat one document open
    {
  // start building User Interface
  var win = new Window("dialog","mTools - Insert Page Numbers v 2");
  var panelMargins = win.add("panel", undefined, "Margins");
  var lblMargins = panelMargins.add("statictext",undefined,"How far from the edge:");
  var txtMargins = panelMargins.add("edittext",undefined, 0.25);
  var lblUnits = panelMargins.add("statictext",undefined,"inches");
  var panelLocation = win.add("panel", undefined, "Location");
  var radTop = panelLocation.add("radiobutton",undefined,"Top");
  var radBottom = panelLocation.add("radiobutton",undefined, "Bottom");
  var panelAlignment = win.add("panel", undefined, "Alignment");
  var radLeft = panelAlignment.add("radiobutton",undefined,"Left");
  var radCenter = panelAlignment.add("radiobutton",undefined, "Center");
  var radRight = panelAlignment.add("radiobutton",undefined, "Right");
  var panelFooter = win.add("panel", undefined, "Text to insert");
  var grpPages = panelFooter.add("group");
  var btnPage = grpPages.add("button",undefined,"P");
  var btnPages = grpPages.add("button",undefined,"Ps");
  var btnDate = grpPages.add("button",undefined,"D");
  var btnTime = grpPages.add("button", undefined, "T");
  var btnFullName = grpPages.add("button", undefined, "fFn");
  var btnFile = grpPages.add("button", undefined, "Fn");
  var txtFooter = panelFooter.add("edittext"); //,undefined, "[Type text to insert here]");
  var btnClear = panelFooter.add("button", undefined, "C");
  btnPage.size = btnPages.size = btnDate.size = btnTime.size = btnFullName.size = btnFile.size = btnClear.size = [31,24]; // on Mac [31, 21] = round buttons, [31,24] = square buttons
  var btnOk = win.add("button", undefined, "Ok");
  radRight.value = radBottom.value = true;
  win.alignChildren = panelFooter.alignChildren = "fill";
  btnClear.alignment = "left";
  panelMargins.spacing = 3;
  panelMargins.orientation = panelLocation.orientation = panelAlignment.orientation = "row";
  win.helpTip = "\u00A9 2012 Carlos Canto";
        btnOk.helpTip = "Press Esc to Close";
  btnPage.helpTip = "Adds *page* keyword, it represents a single page";
  btnPages.helpTip = "Adds *pages* keyword, it represents total number of pages";
  btnDate.helpTip = "Adds *date* keyword, it represents today's date";
  btnTime.helpTip = "Adds *time* keyword, it represents current time";
  btnFullName.helpTip = "Adds *fname* keyword, it represents Full File Name (including path)";
  btnFile.helpTip = "Adds *file* keyword, it represents File Name";
  btnClear.helpTip = "Clears input text area";
  txtFooter.helpTip = "Type \r\t'Page *page* of *pages*' \rto get \r\t'Page 1 of 3' \rfor example";
  //-----------------------------------------------------------------------------------------
  // text place holder by Jongware / Marc Autret
  var wgx = win.graphics;
  var grayPen = wgx.newPen(wgx.PenType.SOLID_COLOR,[.67,.67,.67], 1);
  txtFooter.onDraw = function(/*DrawState*/)
  {
  var gx = this.graphics;
  gx.drawOSControl();
  this.text || this.active || gx.drawString("[Type text to insert here] Press Esc to close", grayPen, 0, 0);
  };
  //-----------------------------------------------------------------------------------------
  btnOk.onClick = function(){
                            if (txtFooter.text != "")
  doSomething(); // call main function
  //win.close(); // close when done
  }
  //-----------------------------------------------------------------------------------------
  //-----------------------------------------------------------------------------------------
  btnClear.onClick = function(){
  txtFooter.text = ""; // call main function
  //win.close(); // close when done
  }
  //-----------------------------------------------------------------------------------------
  //-----------------------------------------------------------------------------------------
  btnPage.onClick = function(){
  footer("*page*");
  }
  //-----------------------------------------------------------------------------------------
  //-----------------------------------------------------------------------------------------
  btnPages.onClick = function(){
  footer("*pages*");
  }
  //-----------------------------------------------------------------------------------------
  //-----------------------------------------------------------------------------------------
  btnDate.onClick = function(){
  footer("*date*");
  }
  //-----------------------------------------------------------------------------------------
  //-----------------------------------------------------------------------------------------
  btnTime.onClick = function(){
  footer("*time*");
  }
  //-----------------------------------------------------------------------------------------
  //-----------------------------------------------------------------------------------------
  btnFullName.onClick = function(){
  footer("*fname*");
  }
  //-----------------------------------------------------------------------------------------
  //-----------------------------------------------------------------------------------------
  btnFile.onClick = function(){
  footer("*file*");
  }
  //-----------------------------------------------------------------------------------------
  win.center();
  win.show();
  //-----------------------------------------------------------------------------------------
  function footer (page) //
  {
  txtFooter.text = txtFooter.text + page;
  }
  function doSomething()
  {
  //alert("I'm doing something");
  var idoc = app.activeDocument;
  try {
  var ilayer = idoc.layers["Page Numbers"];
  } catch(e) {
  var ilayer = idoc.layers.add();
  ilayer.name = "Page Numbers";
  }
  var pages = idoc.artboards.length; // number of artboards
  var datee = getdate ();
  var timee = gettime ();
  var fname = idoc.path == '' ? "Full Name: <unsaved document>" : idoc.fullName;
  var file = idoc.name;
  var footerPages = (txtFooter.text).replace("*pages*",pages);
  //$.writeln(msg);
  footerPages = footerPages.replace("*pages*",pages); // replace the "*pages*" keyword with the actual number fo pages (artboards)
  footerPages = footerPages.replace("*date*",datee);
  footerPages = footerPages.replace("*time*",timee);
  footerPages = footerPages.replace("*fname*",fname);
  footerPages = footerPages.replace("*file*",file);
  var margins = Number(txtMargins.text)*72; // get margins in points
  //$.writeln(margins);
  for (i = 0; i<idoc.artboards.length; i++) // loop thru all artboards, and add input text from UI
  {
  footerPage = footerPages.replace("*page*",i+1); // replace "*page*" keyword with the actual page Number
  var itext = ilayer.textFrames.add();
  itext.contents = footerPage; //"page 1 of 1";
  var fontSize = itext.textRange.characterAttributes.size;
  var activeAB = idoc.artboards;
  var iartBounds = activeAB.artboardRect;
  var ableft = iartBounds[0]+margins;
  var abtop = iartBounds[1]-margins;
  var abright = iartBounds[2]-margins;
  var abbottom = iartBounds[3]+margins+fontSize;
  var abcenter = ableft+(abright-ableft)/2;
  if (radRight.value == true)
  {
  //var msg = "right";
  itext.left = abright;
  itext.textRange.paragraphAttributes.justification = Justification.RIGHT;
  }
  else if (radCenter.value == true)
  {
  //var msg = "center";
  itext.left = abcenter;
  itext.textRange.paragraphAttributes.justification = Justification.CENTER;
  }
  else
  {
  //var msg = "Left";
  itext.left = ableft;
  itext.textRange.paragraphAttributes.justification = Justification.LEFT;
  }
  if (radTop.value == true)
  {
  //var msg = "top";
  itext.top = abtop;
  }
  else
  {
  //var msg = "bottom";
  itext.top = abbottom;
  }
  } // end for loop thru all artboards
  app.redraw();
  } // end function doSomething();
    }
else
    {
        alert ("there's no open documents");
    }
function getdate() {
  var date = new(Date);
  var m = date.getMonth()+1;
  var d = date.getDate();
  var y = date.getFullYear();
  var datemdy = m+"/"+d+"/"+y;
  return datemdy;
//alert(date);
//alert(m+"/"+d+"/"+y);
}
function gettime() {
  var time = new(Date);
  var hours = time.getHours();
  var minutes = time.getMinutes();
  if (minutes < 10){
  minutes = "0" + minutes
  }
  if(hours > 11){
  ampm = "PM";
  } else {
  ampm = "AM";
  }
  var curtime = hours + ":" + minutes + " " + ampm;
  return curtime;
}

P.S. Press the escape key to cancel the script GUI once you have applied the text to all artboards.

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